Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-01-04
2011-01-04
Rabago, Roberto (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S217000, C526S303100, C526S307300, C526S310000, C526S312000, C525S329400
Reexamination Certificate
active
07863395
ABSTRACT:
A method for preparing a cationic polyacrylamide composition particularly suitable for making a glyoxylated polyacrylamide composition useful as a temporary wet-strengthening agent and the composition resulting from that method, along with the use of the composition for adding temporary wet strength to paper and the resulting strengthened paper products.
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Pruszynski, Przemyslaw, Recent Developments in Papermaking Chemicals, Nalco Chemical Co. ; http ://wwwcsi.unian.it/educa/inglese/paperche.html accessed Apr. 19, 2006.
Specification: PAREZ® 631 NC, Wet Strength Resin, Bayer.
Specification: PAREZ® 745, Temporary Wet Strength Resin, Bayer.
Hagiopol Cornel
Johnston James W.
Luo Yuping
Townsend David F.
Georgia-Pacific Chemicals LLC
Kerns Michael S.
Rabago Roberto
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